select and replace only those string which is followed by \tab


 
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Old 09-28-2012
Question select and replace only those string which is followed by \tab

Hi

I have a number of sequences and a string occurs a number of times in that sequence.

How can I select and replace only those strings which are followed by \tab.

for eg :
my sequence looks like :

string0 positive cd parent=string0 id =121 string0
string0 negative ef parent= string0 id =121 string0

I want it to look like
char7 positive cd parent=string0 id =121 string0
char7 negative ef parent= string0 id =121 string0

I want to replace string0 by char7 but only for those followed by \tab
i dont want to replace the string0 in parent and in that id

I am very new into programming so would like some command which is easy to understand Smilie

Thanks a lot!!
 
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Tcl_Backslash(3)					      Tcl Library Procedures						  Tcl_Backslash(3)

__________________________________________________________________________________________________________________________________________________

NAME
Tcl_Backslash - parse a backslash sequence SYNOPSIS
#include <tcl.h> char Tcl_Backslash(src, countPtr) ARGUMENTS
char *src (in) Pointer to a string starting with a backslash. int *countPtr (out) If countPtr is not NULL, *countPtr gets filled in with number of characters in the backslash sequence, includ- ing the backslash character. _________________________________________________________________ DESCRIPTION
The use of Tcl_Backslash is deprecated in favor of Tcl_UtfBackslash. This is a utility procedure provided for backwards compatibility with non-internationalized Tcl extensions. It parses a backslash sequence and returns the low byte of the Unicode character corresponding to the sequence. Tcl_Backslash modifies *countPtr to contain the number of characters in the backslash sequence. See the Tcl manual entry for information on the valid backslash sequences. All of the sequences described in the Tcl manual entry are sup- ported by Tcl_Backslash. SEE ALSO
Tcl(n), Tcl_UtfBackslash(3) KEYWORDS
backslash, parse Tcl 8.1 Tcl_Backslash(3)